110654-98-3Relevant academic research and scientific papers
Ruthenium olefin metathesis catalysts with modified styrene ethers: Influence of steric and electronic effects
Zaja, Mirko,Connon, Stephen J.,Dunne, Aideen M.,Rivard, Michael,Buschmann, Nicole,Jiricek, Jan,Blechert, Siegfried
, p. 6545 - 6558 (2003)
A series of olefin metathesis catalysts with modified isopropoxybenzylidene ligands were synthesised, and the effects of ligands on the rate of metathesis investigated. Increased steric hinderance ortho to the isopropoxy group enhanced reaction rates. In the case of N-heterocyclic carbene complexes, decreasing electron density at both the chelating oxygen atom and the Ru=C bond accelerated reaction rates appreciably. Catalysts containing a tricyclohexylphosphane ligand, followed the same trend with regard to benzylidene electrophilicity, while higher electron density at oxygen enhanced reaction rates.
Novel transition metal complexes and their use in transition metal-catalysed reactions
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, (2008/06/13)
The invention relates to novel transition metal complexes of the formula (I) to processes for preparing these transition metal complexes, to intermediates for preparing them, and also to the use of the transition metal complexes as catalysts in organic re
